Crease-free die for thick material forming

Abstract

The utility model relates to the technical field of crease-free dies, and discloses a crease-free die for thick material forming, which comprises a first upper die stripper plate, first pressing blocks are fixedly connected to the periphery of the front end of the first upper die stripper plate, outer guide columns are fixedly connected to the front ends of the first pressing blocks, and a beating block is fixedly connected to the front end of the first upper die stripper plate. A second upper die stripper plate is fixedly connected to the front end of the punching block, an upper die stop plate is fixedly connected to the front end of the punching block, a separation cut-off tool is fixedly connected to the left side of the front end of the upper die stop plate, a lining is fixedly connected to the top end of the separation cut-off tool, and a bending device is fixedly connected to the right side of the lining. The upper die pressing plate spring compresses, the bending device rotates to complete bending, the upper die pressing plate spring resets during ascending, the bending device resets, bending is completed, no bending mark exists, the surface of a product is smoother and more uniform, and the overall quality level of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crease-free molds, in particular to a crease-free mold for forming thick materials. Background Art

[0002] With the continuous advancement of science and technology, the technology of crease-free molds is also constantly innovating and developing. The use of advanced materials and processing technology can improve the strength and wear resistance of the mold. The crease-free mold adopts a special molding structure, which can avoid creases during the molding process of thick materials. During the molding process, the punch and the die cooperate with each other to extrude the thick material, and the pressure ring is used to prevent the material from wrinkling and deformation during the molding process. The use of crease-free molds can produce products with smooth and crease-free surfaces, improving the quality and appearance of the products. For some thick materials that require heating and molding, the crease-free mold can also be equipped with a temperature control device to ensure that the temperature of the material is uniform and stable during the molding process.

[0003] Crease-free molds for thick material forming are tools that play an important role in industrial production. They are made of high-strength and high-hardness materials to ensure the accuracy and stability of the mold during long-term use. Advanced CNC machining technology is used to ensure the dimensional accuracy and surface quality of the mold, ensuring the accuracy and surface finish of the mold. The surface of the mold is also specially treated to improve its wear resistance and corrosion resistance. It is used for body component forming and interior component forming in the automotive manufacturing field, and for housing forming and component forming in electronic product manufacturing.

[0004] With the continuous enhancement of environmental awareness, the environmental protection requirements for molds are also constantly improving. Crease-free molds can use environmentally friendly materials and processing technology to reduce pollution to the environment. Crease-free molds have a long service life, which can reduce the number of mold replacements and scrapping. Reducing resource waste is also in line with the future development trend of the mold industry. However, due to the rebound at 90 degrees of molding and the relatively thick product material, the product is prone to friction marks during the molding process when using traditional molding methods. The molding marks will destroy the flatness and smoothness of the product surface, making the product look rough and unsightly, and unable to meet customer needs. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a crease-free mold for thick material molding, aiming to improve the problem in the existing technology that due to the rebound at 90 degrees of molding, the product material is relatively thick, and the traditional molding method is used, the product is prone to friction marks during the molding process. The molding marks will destroy the flatness and smoothness of the product surface, making the product look rough and unsightly, and unable to meet customer needs.

[0006] The top of described upper mold pressing plate is fixed with the top of described upper mold pressing plate, and the top of described lower mold pressing plate is fixed with the top of described lower mold pressing plate.

[0007] As a further description of the above technical solution:

[0008] The top of described lower mold plate is fixedly connected with the lower mold base, and the top end of described lower mold base is fixedly connected with the lower mold base.

[0009] As a further description of the above technical solution:

[0010] The left and right sides of the rear end of the upper mold stripper plate 1 are fixedly connected with code mold pads, the rear end of the upper mold stripper plate 1 is connected with multiple upper pads, and the bottom end of the upper mold stop plate is fixedly connected with a safety baffle.

[0011] As a further description of the above technical solution:

[0012] A supporting block 1 is fixedly connected to the left side of the bushing, and a plurality of balancing blocks are fixedly connected to the front end of the upper die stop plate.

[0013] As a further description of the above technical solution:

[0014] The left side of the seat 2 is fixedly connected with a forming punch 1, the right side of the seat 2 is fixedly connected with a stop block, and the bottom end of the lower die blade is fixedly connected with a supporting block 2.

[0015] As a further description of the above technical solution:

[0016] The front end top of the lower pad on the left side is fixedly connected to a lower die base 1, and the front end of the lower die base 1 is provided with a lower die separation knife.

[0017] As a further description of the above technical solution:

[0018] A pressing plate is provided at the top of the second seat, a product is provided at the top of the second forming punch, and a sensor is provided at the bottom of the lower die floating plate.

[0019] As a further description of the above technical solution:

[0020] An upper pad is installed on the top of the block seat, a positioning key is installed on the top of the upper pad, and an upper die seat is installed on the top of the positioning key.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, the upper platen of the punch press moves from top to bottom, driving the upper die part of the mold to move downward, the upper die pressing plate spring is compressed, and the bender rotates to complete the bending. After the punch press plate reaches the bottom dead point position, it begins to rise, and at the same time, the upper die pressing plate spring is reset, the bender is reset, and the bending is completed, so that there is no bending mark, the product surface is smoother and more uniform, and the overall quality level of the product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front perspective view of an upper die stripper plate of a crease-free die for thick material forming proposed by the present invention;

[0024] Figure 2 This is a diagram showing the lower support plate of a crease-free die for thick material forming proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of a support block seat of a crease-free die for thick material forming proposed by the present invention;

[0026] Figure 4 This is a side view of a die pad for a crease-free die for thick material forming proposed by the present invention;

[0027] Figure 5 The utility model provides a side view of the lower pad of a crease-free mold for forming thick materials.

[0028] Legend:

[0029] 1. Upper die stripper plate 1; 2. Upper die stripper plate 2; 3. Code die pad; 4. Upper pad; 5. Punch; 6. Balance block; 7. Positioning pin; 8. Ejector 1; 9. Safety baffle; 10. Separation cutter; 11. Kill block; 12. Trimming punch; 13. Upper die stopper; 14. Seat 1; 15. Bender; 16. Bushing; 17. Press block 1; 18. Outer guide pin; 19. Support block 1; 20. Lower pad; 21. Lower support plate; 22. Forming punch 1; 23. Seat 2; 24. Stop ; 25. Lower template; 26. Lower pad; 27. Sensor; 28. Backing block 2; 29. ​​Pressing block 2; 30. Lower die blade; 31. Guide block; 32. Lower die floating plate; 33. Inner limit; 34. Punch insert; 35. Outer limit; 36. Lower die outer guide sleeve; 37. Lower die separation knife; 38. Lower die seat 1; 39. Lower die seat 2; 40. Backing block seat; 41. Ejector 2; 42. Forming punch 2; 43. Product; 44. Pressing plate; 45. Upper pad; 46. Upper die seat; 47. Positioning key. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Please see the attached Figure 1 , Attachment Figure 3 and attached Figure 4, the utility model provides an embodiment: a crease-free mold for thick material forming, including an upper mold stripper plate 1, the front end of the upper mold stripper plate 1 is fixedly connected with a pressure block 17, the front end of the pressure block 17 is fixedly connected with an outer guide column 18, the upper mold stripper plate 1 is fixedly connected with the pressure block 17 on all sides, these pressure blocks not only play a role in reinforcing the mold structure, but also ensure the stability and safety of the mold during the stamping process, the front end of the pressure block 17 is connected to the outer guide column 18, to ensure that the mold can run accurately during the mold closing and opening processes, avoiding the risk of offset or misalignment, the front end of the upper mold stripper plate 1 is fixedly connected with a killing block 11, the front end of the killing block 11 is fixedly connected to the upper mold stripper plate 2, the front end of the killing block 11 is fixed The upper die stopper plate 13 is fixedly connected to the upper die stopper plate 13, and the left side of the front end of the upper die stopper plate 13 is fixedly connected to the separation and cutting knife 10. The killing block 11 is attracted and fixedly connected to the front end of the upper die stripper plate 1, which not only bears the weight of the upper die stripper plate 2, but also further strengthens the overall rigidity of the mold through the upper die stopper plate 13 connected at its front end. The upper die stopper plate 13 serves as a multi-functional hub in the mold, and its front end layout is compact and multi-functional. The top of the separation and cutting knife 10 is fixedly connected to a bushing 16, and the right side of the bushing 16 is fixedly connected to a bender 15, and the right side of the bender 15 is fixedly connected to a seat 14. The left side of the front end of the upper die stopper plate 13 is fixedly connected to the separation and cutting knife 10, and the top thereof is fixed with a bushing 16. This design not only enhances the stability of the tool The tool is qualitatively improved, and the replacement and maintenance of the tool are more convenient. The right side of the bushing 16 is the bender 15, which can accurately complete the bending task of the material during the stamping process, laying a solid foundation for the subsequent processing steps. The right side of the bender 15 is fixedly connected to the seat 14, providing a solid support for the entire bending mechanism. The front end of the upper die stop plate 13 is fixedly connected with a punching punch 5, the front end of the upper die stop plate 13 is fixedly connected with a positioning pin 7, the front end of the upper die stop plate 13 is fixedly connected with a ejector pin 8, and the front end of the upper die stop plate 13 is fixedly connected with a trimming punch 12. The punching punch 5 at the front end of the upper die stop plate 13 uses its sharp cutting edge to accurately penetrate the material during the stamping process to form the required holes, and the positioning pin 7 ensures that the material Precise positioning during the stamping process avoids any processing errors caused by offset. The ejector pin 8 is responsible for ejecting the product 43, ensuring that the product 43 can be smoothly demoulded after the stamping is completed, and the trimming punch 12 is responsible for cutting off the excess material on the edge of the product 43, so that the product 43 meets the expected appearance and quality requirements. A lower support plate 21 is provided at the bottom of the upper mold stripper plate 1, and the left and right sides of the rear end of the upper mold stripper plate 1 are fixedly connected to the code mold feet 3. The rear end of the upper mold stripper plate 1 is connected to multiple upper feet 4, and the bottom end of the upper mold stop plate 13 is fixedly connected to the safety baffle 9. The lower support plate 21 at the bottom of the upper mold stripper plate 1 provides additional support and stability for the mold, ensuring that the overall structure of the mold will not be deformed due to uneven force during the stamping process.The rear end of the upper die stripper plate 1 is provided with a die-stacking foot 3 and an upper foot 4. These foots not only adjust the height and level of the die, but also make the die more flexible and convenient during installation and commissioning. The presence of a safety baffle 9 connected to the bottom end of the upper die stop plate 13 effectively prevents possible accidental injuries during the stamping process.

[0032] Specifically, the front end of the upper mold stripper plate 1 is fixedly connected with multiple pressure blocks 17 around it to ensure that the mold can maintain a stable structure under high pressure. The front end of the pressure block 17 is precisely connected to the other parts of the mold through the outer guide column 18. The design of the outer guide column 18 not only enhances the rigidity of the mold, but also greatly improves the guiding accuracy of the mold. The front end of the killing block 11 is tightly connected to the upper mold stripper plate 2. This double-layer stripper plate design effectively improves the stability and reliability of the mold during the stripping process. The killing block 11 is also cleverly connected to the upper mold stop plate 13 to form a solid support system. The front end of the upper mold stop plate 13 not only has a separating cutting knife 10 for achieving precise cutting, but also has a bushing 16 fixedly connected to its top. This design not only protects the cutting knife, but also improves the cutting accuracy and efficiency. A bender 15 is installed on the right side of the bushing 16, which can accurately bend the material during the molding process, avoiding the crease problem that is easy to occur in the bending process of traditional molds.

[0033] Please see the attached Figure 2 , Attachment Figure 3 and attached Figure 5The left and right sides of the front end of the lower supporting plate 21 are fixedly connected with the lower pads 20, the top of the lower pads 20 is fixedly connected with a pressure block 29, the bottom end of the pressure block 29 is fixedly connected with the lower mold outer guide sleeve 36, the top of the lower pads 20 is fixedly connected with the outer limit 35, the left and right sides of the front end of the lower supporting plate 21 are fixedly connected with the two lower pads 20, ensuring the stability of the entire structure, the top of the lower pads 20 is designed with a pressure block 29, the bottom end of the pressure block 29 is fixedly connected to the lower mold outer guide sleeve 36, ensuring the accuracy and stability of the mold in high-speed movement, the top of the lower pads 20 is also fixedly connected to the outer limit 35, providing another layer of protection for the safe operation of the mold, the front end of the lower pads 20 is fixedly connected with the seat 23, and the bottom of the seat 23 is provided with the lower mold Seat 2 39, a forming punch 2 42 is provided at the left end of seat 23, a thimble 2 41 is fixedly connected to the left side of the bender 15, the front end of the lower pad 20 is fixedly connected to seat 23, and a lower die seat 2 39 is provided at the bottom to provide a solid support for the mold, so that the mold can maintain a stable posture during the stamping process, a forming punch 2 42 is provided at the left end of seat 23, and the forming punch 2 42 impacts the workpiece at an extremely high speed, causing it to undergo plastic deformation, thereby achieving the desired forming effect, an thimble 2 41 is fixedly connected to the left side of the bender 15, and a support block seat 40 is fixedly connected to the left side of the thimble 2 41, the front end of the lower pad 20 is fixedly connected to the lower pad 26, and the front end of the lower pad 26 is fixedly connected to the lower template 25, and the lower template 25 The top is fixedly connected with a punching insert 34, the top of the lower template 25 is fixedly connected with an inner limit 33, and the left side of the ejector pin 41 is fixedly connected with a block seat 40, which provides the possibility for precise positioning of the mold during the stamping process and ensures the stability and accuracy of the mold during the stamping process. The front end of the lower pad 20 is also fixedly connected to the lower pad 26, and its front end is fixedly connected to the lower template 25. The upper end of the lower template 25 is fixedly connected with a punching insert 34 and an inner limit 33. The punching insert 34 is used to punch the required holes on the workpiece, and the inner limit 33 is used to limit the internal movement range of the mold during the stamping process to prevent damage caused by excessive movement. A lower mold floating plate 32 is provided on the right side of the lower template 25, and the front end of the lower mold floating plate 32 is fixedly connected to the lower pad 26. The guide block 31 is fixedly connected, the front end of the lower die floating plate 32 is fixedly connected to the lower die blade 30, and the lower die floating plate 32 is provided on the right side of the lower die plate 25. The lower die floating plate 32 plays a buffering and guiding role in the stamping process of the die, and the guide block 31 and the lower die blade 30 fixedly connected at the front end are respectively used to guide the workpiece into the die and complete the stamping cutting. The front end top of the left lower pad 20 is fixedly connected to the lower die base 38, and the front end of the lower die base 38 is provided with a lower die separating knife 37. The front end top of the left lower pad 20 is fixedly connected to the lower die base 38, and the front end of the lower die base 38 is provided with a lower die separating knife 37. After the stamping is completed, the workpiece and the die are quickly and accurately separated, thereby ensuring the continuity and efficiency of the stamping process.

[0034] Specifically, the left and right sides of the front end of the lower support plate 21 are fixedly connected to the lower pads 20, and the top of the lower pads 20 is fixedly connected to the second pressure block 29. This design not only enhances the stability of the structure, but also provides a reliable pressure transmission point for subsequent process steps. The bottom end of the second pressure block 29 is closely connected to the lower mold outer guide sleeve 36. The lower mold outer guide sleeve 36 ensures the precise alignment of the mold during the mold closing process, effectively preventing the mold from offsetting or misaligning, thereby ensuring the processing accuracy of the product 43. The top of the lower pad 20 is also fixedly connected to the outer limit 35. This design further limits the range of motion of the mold and enhances the safety performance of the mold. The seat 23 is connected to the front end of the lower pad 20. It not only provides additional support for the entire mold structure, but also carries the lower mold base 2 39. The lower mold base 2 39 serves as the bottom support platform of the mold. Its stability and strength are directly related to the service life and processing quality of the mold. At the left end of the seat 23, a forming punch 2 42 is set. This component plays a vital role in the stamping process of the mold and can accurately complete the forming task of the product 43.

[0035] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 3The left side of the bushing 16 is fixedly connected with a support block 19, the front end of the upper die stop plate 13 is fixedly connected with a plurality of balancing blocks 6, the left side of the seat 23 is fixedly connected with a forming punch 22, and the right side of the seat 23 is fixedly connected with a stop block 24. The support block 19 fixedly connected to the left side of the bushing 16 ensures that the mold maintains precise positioning during high-speed operation. The support block 19 also provides stable support, which significantly improves the overall performance of the mold. The front end of the upper die stop plate 13 is cleverly installed with multiple balancing blocks 6. Through the precise counterweight design, the vibration generated by the mold during high-speed stamping is effectively reduced. The mold is pressed and the noise is reduced, thereby improving production efficiency and product 43 quality. The forming punch 1 22 fixedly connected to the left side of the seat 23 ensures its accuracy and durability during the stamping process. The right side of the seat 23 is also fixedly connected to the stopper 24. This design not only enhances the overall structural strength of the mold, but also plays a role in limiting the movement range of the forming punch 1 22, effectively preventing mold damage or product 43 defects caused by excessive stamping. The bottom end of the lower die blade 30 is fixedly connected to the support block 28, and the top of the support block seat 40 is installed with an upper pad 45, and the top of the upper pad 45 is installed with a positioning key. 47, the top of the positioning key 47 is installed with the upper die seat 46, the bottom end of the lower die blade 30 is fixedly connected to the support block 28 and the support block 19 together constitute the support system of the mold, which not only provides a stable support platform for the mold, but also ensures the precise positioning and stable operation of the mold during the stamping process through precise matching. The upper pad 45 installed on the top of the support block seat 40 provides a stable installation foundation for the positioning key 47, and effectively alleviates the impact force and vibration generated by the mold during the stamping process through its good elasticity and wear resistance. The positioning key 47 ensures the stability of the upper die seat 46 and other parts of the mold. The precise matching relationship between the components: a pressure plate 44 is provided on the top of the second seat 23, a product 43 is provided on the top of the second forming punch 42, and a sensor 27 is provided on the bottom of the lower die floating plate 32. The pressure plate 44 on the top of the second seat 23 can effectively prevent the material from deflecting and wrinkling during the stamping process, thereby further improving the appearance quality and performance stability of the product 43. The sensor 27 at the bottom of the lower die floating plate 32 monitors various parameters during the stamping process in real time. The sensor 27 can quickly feedback and adjust the working status of the equipment, thereby ensuring stable production and high-quality output of the product 43;

[0036] Specifically, the left side of the bushing 16 is fixedly connected to the support block 19, which firmly supports the left side of the entire structure. A plurality of balancing blocks 6 are integrated at the front end of the upper die stop plate 13. Through precise counterweighting and adjustment, the torque of the upper die during movement is effectively balanced, avoiding deviation and loss caused by vibration or imbalance. The forming punch 22 is fixedly connected to the left side of the seat 23, and the right side block 24 of the seat 23 ensures that the flow and positioning of the material can be strictly controlled during the stamping process, thereby ensuring the dimensional accuracy and appearance quality of the product 43. The support block 28 at the bottom end of the lower die blade 30 not only enhances the stability of the blade, but also alleviates the impact force during the stamping process to a certain extent, protecting the overall structure of the equipment.

[0037] Working principle: The platen on the punch press moves from top to bottom, driving the upper die stripper plate 1, the upper die stripper plate 2 and the upper die stop plate 13 on the upper die part of the mold to move downward. The upper and lower outer guide pillars 18 accurately guide the mold, and the mold begins to close. When the upper die part drops to a certain position, the upper die pressing plate 44 contacts the product 43 and presses the product 43. The punch press continues to move downward, and the upper die pressing plate 44 spring is compressed. When the bender 15 contacts the product 43, the punch press continues to move downward, the bender 15 rotates, and the bending is completed. After the bed plate reaches the bottom dead center position, it starts to rise, driving the upper mold part to move upward. At the same time, the upper mold pressing plate 44 spring resets, the bender 15 resets, and the bending is completed. In this way, the bending adjustability of product 43 is high, and the rebound of product 43 can be better suppressed, so that product 43 maintains a stable size and shape after forming, reduces scrap and rework caused by dimensional deviation, ensures that it meets the design requirements, and at the same time has no bending marks, making the surface of product 43 smoother and more uniform, improving the overall quality level of product 43.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crease-free mold for forming thick materials, comprising an upper mold stripper plate (1), characterized in that: The front end of the upper mold stripping plate (1) is fixedly connected with a pressure block (17) around its periphery, and the front end of the pressure block (17) is fixedly connected with an outer guide column (18). The front end of the upper mold stripping plate (1) is fixedly connected with a killing block (11), and the front end of the killing block (11) is fixedly connected with an upper mold stripping plate (2). The front end of the killing block (11) is fixedly connected with an upper mold stop plate (13), and the left side of the front end of the upper mold stop plate (13) is fixedly connected with a separation cutting knife (10), and the top of the separation cutting knife (10) is fixedly connected with a lining The sleeve (16) is fixedly connected to a bender (15) on the right side of the sleeve (16), and a seat (14) is fixedly connected to the right side of the bender (15). The front end of the upper die stop plate (13) is fixedly connected to a punching punch (5), the front end of the upper die stop plate (13) is fixedly connected to a positioning pin (7), the front end of the upper die stop plate (13) is fixedly connected to a ejector pin (8), and the front end of the upper die stop plate (13) is fixedly connected to a trimming punch (12). A lower support plate (21) is provided at the bottom of the upper die stripping plate (1).

2. The crease-free mold for thick material forming according to claim 1, characterized in that: The front end and left and right sides of the lower support plate (21) are fixedly connected with lower pads (20), the top of the lower pads (20) is fixedly connected with a pressure block 2 (29), the bottom of the pressure block 2 (29) is fixedly connected with a lower die outer guide sleeve (36), the top of the lower pads (20) is fixedly connected with an outer limit (35), the front end of the lower pads (20) is fixedly connected with a seat 2 (23), the bottom of the seat 2 (23) is provided with a lower die seat 2 (39), the left end of the seat 2 (23) is provided with a forming punch 2 (42), and the left side of the bender (15) is fixedly connected with a ejector pin 2 (41). The left side of the ejector pin 2 (41) is fixedly connected to a support block seat (40), the front end of the lower pad foot (20) is fixedly connected to a lower pad (26), the front end of the lower pad (26) is fixedly connected to a lower template (25), the top end of the lower template (25) is fixedly connected to a punching insert (34), the top end of the lower template (25) is fixedly connected to an inner limit (33), a lower mold floating plate (32) is provided on the right side of the lower template (25), the front end of the lower mold floating plate (32) is fixedly connected to a material guide block (31), and the front end of the lower mold floating plate (32) is fixedly connected to a lower mold blade (30).

3. The crease-free mold for thick material forming according to claim 1, characterized in that: The left and right sides of the rear end of the upper mold stripper plate (1) are fixedly connected to code mold pads (3), the rear end of the upper mold stripper plate (1) is connected to a plurality of upper pads (4), and the bottom end of the upper mold stop plate (13) is fixedly connected to a safety baffle (9).

4. The crease-free mold for thick material forming according to claim 1, characterized in that: The left side of the bushing (16) is fixedly connected to a support block (19), and the front end of the upper die stop plate (13) is fixedly connected to a plurality of balancing blocks (6).

5. The crease-free mold for thick material forming according to claim 2, characterized in that: The left side of the second seat (23) is fixedly connected to the first forming punch (22), the right side of the second seat (23) is fixedly connected to the stopper (24), and the bottom end of the lower die blade (30) is fixedly connected to the second support block (28).

6. The crease-free mold for thick material forming according to claim 2, characterized in that: The front end top of the left lower pad (20) is fixedly connected to a lower die base (38), and the front end of the lower die base (38) is provided with a lower die separation knife (37).

7. The crease-free mold for thick material forming according to claim 2, characterized in that: A pressing plate (44) is provided at the top of the second seat (23), a product (43) is provided at the top of the second forming punch (42), and a sensor (27) is provided at the bottom of the lower die floating plate (32).

8. The crease-free mold for thick material forming according to claim 2, characterized in that: An upper pad (45) is installed on the top of the support block seat (40), a positioning key (47) is installed on the top of the upper pad (45), and an upper die seat (46) is installed on the top of the positioning key (47).

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